S19E16
Tense but ultimately hopeful resilience
Written by Eric Saward
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The Visitation Part 4

The Doctor and his companions must stop the Terileptils, alien creatures using an android and advanced technology to harvest humans for a deadly disease, threatening London.

The Doctor, Tegan, and Adric find themselves entangled in a sinister plot by the Terileptils, alien beings intent on harvesting humans to spread a deadly disease on 17th-century Earth. The Terileptils utilize advanced technology, including an android disguised as Death, to capture victims. The Doctor and his companions work to thwart the Terileptils' plans, navigating through various locations, including a manor house, a bakery, and the Terileptil base. Along the way, they encounter Mace, a resourceful ally, and Nyssa, who plays a crucial role in disabling the android. As the stakes escalate, the Doctor and his companions face numerous challenges, including decoding Terileptilian script, evading the android, and ultimately confronting the Terileptils in a tense showdown. The narrative unfolds with a mix of action, suspense, and wit, characteristic of the Doctor's adventures.


Events in This Episode

The narrative beats that drive the story

31
Act 1

The narrative opens with the Doctor, Tegan, and Mace imprisoned in a cell, their minds temporarily compromised by the Terileptils' powerpacks. The Doctor quickly neutralizes Tegan and Mace's aggression by removing the powerpacks from their bracelets, initiating their recovery from the alien influence. Simultaneously, the Terileptil leader dispatches the android, still disguised as Death, with explicit orders to locate and pilot the TARDIS to their base, escalating the immediate threat. Mace, demonstrating unexpected resourcefulness, begins to pick the manacles and then the cell door lock using a safety pin, recounting a past experience with a French acrobat. Despite Mace's progress, the Doctor, prioritizing speed and urgency, ultimately uses Mace's pistol to blast a hole in the door, securing their escape from the immediate confinement. In a parallel storyline, Nyssa, isolated within the TARDIS, diligently works to connect the sonic disrupter to the power cable, preparing a crucial defense against the impending android attack. This act establishes the immediate peril of the imprisoned companions, highlights Mace's practical skills, and sets up Nyssa's critical role in countering the android, all while the Terileptils advance their sinister plans. The Doctor's decisive actions underscore the urgency of their situation, pushing them towards freedom and a direct confrontation with their captors. The initial escape provides a sense of triumph, but the looming threat of the android and the Terileptil's broader scheme keeps the tension high, leaving the companions free from their cell but still trapped within the manor, and Nyssa poised to deploy her device.

Act 2

Following their escape from the cell, the Doctor, Tegan, and Mace navigate the manor, seeking an exit while the android closes in on the TARDIS. The android confronts Adric and Nyssa outside the TARDIS, forcing Nyssa to retreat inside. The android breaches the TARDIS doors, but Nyssa, having successfully prepared the sonic disrupter, uses it to overload and destroy the mechanical man in a dramatic confrontation within the girl's bedroom, reducing it to smoking remains. Adric and Nyssa reunite, shaken but victorious, discussing the damage to the TARDIS and the whereabouts of the Doctor and Tegan. Meanwhile, the Doctor, Tegan, and Mace find themselves trapped again in the wine cellar by the miller, who reinstates a forcefield. The Doctor cleverly bypasses the forcefield by manipulating the door switch with the safety pin, and the team subdues the miller, securing the Terileptil control panel. They discover the Terileptils have relocated to a nearby city, which Mace identifies as London. Adric and Nyssa attempt to pilot the TARDIS to find the others, but the ship struggles to materialize, flickering erratically and causing anxiety for the Doctor and his companions. Eventually, the TARDIS successfully materializes, reuniting the entire team. The Doctor then uses the TARDIS scanner, displaying an old map of London, to triangulate the precise location of the Terileptil base, identifying an electrical emission from scientific equipment, setting the stage for the final confrontation. This act marks a significant victory against the android threat, resolves the separation of the companions, and provides a clear objective for the climax.

Act 3

The Doctor and his reunited companions arrive outside a bakery in 17th-century London, deducing it as the Terileptil base from the presence of the miller's cart. They enter cautiously, but Adric's accidental noise alerts the Terileptils inside. Within the base, the Terileptil leader anticipates their arrival, having expected the android to bring the TARDIS. A tense standoff escalates into a violent struggle as the other Terileptils attempt to capture the Doctor and Mace. During the ensuing fight, a burning brand ignites the straw-covered floor, quickly spreading fire throughout the bakery. One Terileptil is shot by Mace, and another is subdued by Tegan using the musket. A beeping sound indicates an exploding Terileptil weapon, forcing the team to evacuate immediately as the flames reach it. Outside, as the bakery explodes, the Doctor realizes the fire's potential. He orders everyone to throw the boxes of plague vials, the Terileptils' deadly cargo, into the inferno, ensuring their complete destruction and preventing the spread of the disease. The Terileptils die in agony from the heat and fire, their bodies covered in blisters. Mace decides to stay and fight the fire, declining to join the Doctor's fast-paced life, and the Doctor gives him the control panel as a keepsake. As the TARDIS dematerializes, the Doctor hums "London's Burning," hinting at the larger historical significance of the fire, which is revealed to be the Great Fire of London, originating on Pudding Lane. The companions express concern about leaving the fire, but the Doctor suggests it must run its course, implying a fixed point in time and a necessary historical event.